In the books, the titular Grandma seeks to explore the true meaning of the Japanese phrase "mottainai" after her son asked her what it meant and she couldn't answer. "Mottainai" is a commonly used exclamation that roughly translates to "what a waste!", expressing regret over wastefulness. The Grandma seeks to explore the meaning and importance of "mottainai" in the story.
Miru Tights61%
Tawawa on Monday64%
DON'T TOY WITH ME, MISS NAGATORO82%
WATATEN!: an Angel Flew Down to Me82%
Great Teacher Onizuka84%
Anne Happy♪74%
School Rumble75%
Aharen-san wa Hakarenai73%
Ultimate Otaku Teacher79%
SHOSHIMIN: How to Become Ordinary74%
Akebi's Sailor Uniform69%
Bungo Stray Dogs Wan!71%
Life Lessons with Uramichi Oniisan71%
Place to Place68%
Maison Ikkoku76%
Teasing Master Takagi-san81%
Himouto! Umaru-chan82%
Azumanga Daioh79%
My Teen Romantic Comedy SNAFU82%
Horimiya: The Missing Pieces76%
